Helli,
I would like to use a WT901 sensor board as a compass and inclinometer.
The board works itself if I connect it to it's PC application.
But I have problem with the arduino code provided by the manufacturer.
I downloaded to an arduino uno and then to a nano board but it does not write any serial data.
/*
This code is used for connecting arduino to serial mpu6050 module, and test in arduino uno R3 board.
connect map:
arduino mpu6050 module
VCC 5v/3.3v
TX RX<-0
TX TX->1
GND GND
note:
because arduino download and mpu6050 are using the same serial port, you need to un-connect 6050 module when you want to download program to arduino.
Created 14 Nov 2013
by Zhaowen
serial mpu6050 module can be found in the link below:
http://item.taobao.com/item.htm?id=19785706431
*/
unsigned char Re_buf[11],counter=0;
unsigned char sign=0;
float a[3],w[3],angle[3],T;
void setup() {
// initialize serial:
Serial.begin(115200);
}
void loop() {
if(sign)
{
sign=0;
if(Re_buf[0]==0x55) //检查帧头
{
switch(Re_buf [1])
{
case 0x51:
a[0] = (short(Re_buf [3]<<8| Re_buf [2]))/32768.0*16;
a[1] = (short(Re_buf [5]<<8| Re_buf [4]))/32768.0*16;
a[2] = (short(Re_buf [7]<<8| Re_buf [6]))/32768.0*16;
T = (short(Re_buf [9]<<8| Re_buf [8]))/340.0+36.25;
break;
case 0x52:
w[0] = (short(Re_buf [3]<<8| Re_buf [2]))/32768.0*2000;
w[1] = (short(Re_buf [5]<<8| Re_buf [4]))/32768.0*2000;
w[2] = (short(Re_buf [7]<<8| Re_buf [6]))/32768.0*2000;
T = (short(Re_buf [9]<<8| Re_buf [8]))/340.0+36.25;
break;
case 0x53:
angle[0] = (short(Re_buf [3]<<8| Re_buf [2]))/32768.0*180;
angle[1] = (short(Re_buf [5]<<8| Re_buf [4]))/32768.0*180;
angle[2] = (short(Re_buf [7]<<8| Re_buf [6]))/32768.0*180;
T = (short(Re_buf [9]<<8| Re_buf [8]))/340.0+36.25;
Serial.print("a:");
Serial.print(a[0]);Serial.print(" ");
Serial.print(a[1]);Serial.print(" ");
Serial.print(a[2]);Serial.print(" ");
Serial.print("w:");
Serial.print(w[0]);Serial.print(" ");
Serial.print(w[1]);Serial.print(" ");
Serial.print(a[2]);Serial.print(" ");
Serial.print("angle:");
Serial.print(angle[0]);Serial.print(" ");
Serial.print(angle[1]);Serial.print(" ");
Serial.print(angle[2]);Serial.print(" ");
Serial.print("T:");
Serial.println(T);
break;
}
}
}
}
void serialEvent() {
while (Serial.available()) {
//char inChar = (char)Serial.read(); Serial.print(inChar); //Output Original Data, use this code
Re_buf[counter]=(unsigned char)Serial.read();
if(counter==0&&Re_buf[0]!=0x55) return; //第0号数据不是帧头
counter++;
if(counter==11) //接收到11个数据
{
counter=0; //重新赋值，准备下一帧数据的接收
sign=1;
}
}
}
The adatasheet can be found here:
https://drive.google.com/file/d/1sW7J7t_lliwtaLG1zajVMYruAreQnNxg/view
What is wrong with the code?